Lubricator



Patented Dec. 24, 1935 UNITED STATES 2,025,637 LUBRICATOR.

William S. Boehm, St. Louis, Mo., assignor to Lincoln Engineering Company, St. Louis, Mo., a

corporation of Missouri Application August 11,

- Claims.

This invention relates to lubricators, and with regard to certain more specific features, to lubricators for journal boxes and the like.

Among the several objects of the invention may be noted the provision of an automatic, journalbox, lubricator pump which is operable by'the side sway induced by movement of the vehicle on which the device is located; the provision of a pump of the class described which shall have an advantageous arrangement of parts adapted to be readily disassembled or to have replacements made while on the journal box; and the provision of a pump of the class described which shall have an improved and more dependable action.

Other objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly comprises the elements and combinations of elements, features of construction, and arrangements of parts which will be exemplified in the structures hereinafter described, and the scope of the application of which will be indicated in the following claims.

In the accompanying drawing, in which is illustrated one of various possible embodiments of the invention,

Fig. 1 is a plan view of the pump;

Fig. 2 is a longitudinal section thereof; and,

Fig. 3 is a vertical section taken on line 33 of Fig. 1 showing an applicator.

30 Similar reference characters indicate corresponding parts throughout the several views of the drawing.

The general structure to which the structure of the present invention applies is shown in copend- 35 ing United States patent application of Frank S. Barks, Serial No. 738,954, filed August 8, 1934,

for Lubricator, which is an improvement upon apparatus'shown in United States Patent 1,948,297.

As is shown in said application and patent, journals of locomotives and car wheels and the like may be provided with sumps'which are fastened to the journal boxes and which carry a supply of lubricant. Pumps are provided in the sumps,

the same having means whereby relative motion between the journal box and the journal effects operation of the pump to flush oil upon the journal.

However, it has not been disclosed heretofore how to construct a pump along the advantageous lines herein laid down. Prior pumps have been difficult to apply and remove for purposes of repair or replacement. The present pump may be quickly disassembled and reassembled for such purposes.

Referring now more particularly to Fig.1 of

1934, Serial No. 739,445

the drawing, there is shown at numeral 59 a cylinder having a head 6| which is welded at 63 to the. sump 21. From the right-hand end of the cylinder 59 is introduced a reciprocating sleeve 65 having a pressed-in head 61 and a groove 69 with which cooperates an outwardly pressing spring ring 1|, the latter limiting the movement of the sleeve.

The head 61 contacts with the hub of the locomotive wheel and responds by reciprocation in the cylinder 59 tolateral movement of the sump 21 with respect to the wheel. There is always such lateral movement between the sump and the wheel because of the side sway allowed between the journal box (to which is attached 1;; the sump) and the wheels. For more particulars in respect to the relationship between journal box, sump and wheels, see the references to the copending application and the patent above cited.

The interior of the head 61 contacts with, 20 but is not joined to, a plunger stem 15 which at its inner end is formed as a plunger 11. The stem 15 carries a fixed head 13'. A spring 19 normally reacts on head 13 to cause the plunger 11 to follow the motion of the head 61. 15 is guided in a bushing 8| located in the end. of a second cylinder 83 which carries said plunger 11. .The member 1.1, 61, and 65 form what may be referred to as a plunger assembly within bushing 59. V V

The cylinder 83 has a slip fit with respect to the cylinder or bushing 59 and is provided with a. dowel pin .85 which cooperates with a. groove 81 in the cylinder 59 to effect a predetermined angular relationship between said cylinders 59 and 83.

The cylinder 83 carries an inlet check valve 89 and an outlet check valve 9|, whereby reciprocation of the plunger 11 effects indrawing of the lubricant through the valve 89 and expulsion of the same through the valve 9|. The valves are simple in construction consisting simply in a cylinder held in a bore by a plug I. The cylinder H is counterbored at each end as at 3 to accommodate the valves 89 which are simply balls. The plug is milled as at 5 to pro- I vide propercommunications to the pump and outlet and the bores 3 and 5 communicate centrally by a bore 1. Opposite the counterbore 3 is an inlet bore 9 providing ingress to the valve. 7

From the valve 9|, the lubricant is forced through a hollow stem 93 which is threaded to the cylinder 83, the same having a clearing internal fit with respect to an exhaustmanifold cap 95, the latter serving in cooperation with the The stem 25 r tion.

left-hand end of cylinder 59 to support a strainer 91 for straining the oil which proceeds to the downwardly located check valve 89. The pur pose of the predetermined angular relationship determined by the dowel pin 85 and recess 81 is to maintain the inlet check valve 89 directed downwardly to as low a point as possible in the well of oil.

The hollow outlet 93 carries a shoulder 99 which cooperates with the manifold cap 95 to close the left end thereof. The closure 99 is provided with spanner wrench sockets III] and a seat for a spring I93, the: latter reacting against the opposite end of the sump 21 to force together the parts 83 and 59, thereby maintaining the assembly of the pump in the sump.

Demounting of the pump for making repairs is quite simple. All that is necessary is to pull back the spring I89 from the member '99. Thereafter parts 93, 95, 9'5, 83, 8!, I5 and 19 may be withdrawn as a unit from the cylindric bushing 59. These may then be readily separated by unloosening member 99. The head 6'1 with the sleeve 55 may be drawn out in the opposite direc- Repairs thus may be quite readily effected.

The. outlet manifold 95 carries an outlet pipe I95 which has a slip fit E9? in a recess of a lubricant well I09. The well 559 has a vertically slidable applicator Ill which is normally spring pressed upwardly by means of spring H3, the

same having a bearing on a stem H5 and being limited in its motion by a cross pin H1. The applicator includes a spread head H9 for contacting with the journal which is located above.

It will be seen that as the side sway takes place with the motion of the vehicle, the plunger which contacts the wheel, reciprocates to withdraw lubricant from the sump and force it through the manifold 95, pipe I05, well I09, and applicator ill against any journal which may be located above the applicator.

In View of the above, it will be seen that the several objects of the invention are achieved and other advantageous results attained.

As many changes could be made in carrying out the above constructions without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

I claim: 7 1. In apparatus of the class described, a sump,

. a cylindric bushing within the sump and communicating with the exterior of the sump, a hollow cylindric reciprocating member insaid bushing and adapted to be operated from the outside of the sump, a pump cylinder removably fitting said bushing, a plunger in said pump cylinder, and

' resilient means pressing said plunger in a direction to cooperate with the interior of said reciprocating. member and partaking of the reciprocation thereof, inlet and outlet check valves associated with said pump cylinder and adapted to draw in and expel fluid under reciprocation of said plunger, an outlet member fastened to said pump cylinder, an outlet manifold held to the pump cylinder by the outlet member and resilient means pressing said outlet, said manifold and said pump cylinder into separable assembly with said first-named bushing. V I

2. In apparatus of the class described, a sump, a cylindric member within the sump,.a second and hollow cylindric member reciprocable in said first-named member and adapted to' be operated from the outside of the sump, a third cylindric member interiorly of said first cylindric member, a plunger in said third cylindric member, resilient means pressing said plunger in a direction to cooperate with the interior of the second 5 cylindric member topartake of the reciprocation of said second cylindric member, inlet and outlet check valves associated with said third. cylindric member and adapted to draw in and expel fluid under reciprocation of said plunger, an outlet 10 manifold, an outlet member fastened to said third cylindric member and adapted to hold said outlet manifold thereto, and resilient means pressing said outlet with said manifold and said third cylindric member into assembly with said firstnamed cylindric member.

3. In apparatus of the class described, a sump, a cylindric member within the sump, a second and hollow cylindric member reciprocable in said first-named member and adapted to be operated from the outside of the sump, a third cylindric member interiorly of said first cylindric, member, a plunger in said third cylindric member, resilient means pressing said plunger in a direction to cooperate with the interior of the second cylindric member to partake of the reciprocation of said second cylindric member, inlet and outlet check valves associated with said third cylindric member and adapted to draw in and expel fluid under reciprocation of said plunger, an out- 30.

let manifold, an outlet member fastened to said third cylindric member and adapted to hold said outlet manifold thereto, and resilient means pressing said outlet with said manifold and said third cylindric member into assembly with said first-named cylindric member and a strainer held between said outlet manifold and said first-named cylindric member.

4. In apparatus of the class described, a sump, a cylindric member within the sump and com- 4- 0 municating exteriorly of the sump, a second and. hollow cylindric member reciprocable in said first-named member and adapted to be operated from the outside of the sump, a third cylindric member interiorly of said first cylindric member, 4 5'. a plunger in said third cylindric member, resilient means pressing said plunger in a direction to cooperate with the interior of the second cylindric member to partake of the reciprocation of said second cylindric member, inlet and outlet check valves associated with said third cylindric member and adapted to draw in and expel fluid under reciprocation of said plunger, an outlet manifold, an outlet member fastened to said third cylindric member and adapted to hold said outlet manifold thereto, and resilient means pressing said outlet with said manifold and said third cylindric member into assembly with said firstnamed cylindric member, and register means between said rthird cylindric member and said first 0 cylindric member adapted to maintain a predetermined angular relationship between the two.

5. In apparatus of the class described, a sump, a bushing in the sump, said bushing communicating with the exterior of the sump, a reciprocating plunger cooperating interiorly with the bushing and reciprocable from the outside of the sump, a pump cylinder. separably fitted within said bushing, a plunger in said cylinder, a resilient means normally forcing said plunger into engagement with said reciprocable member within the bushing, inlet and outlet check valves associated with said cylinder and adapted. to draw in and expel fluid under reciprocation of said plunger, outlet means associated with the cylinder, and spring T5 means adapted. to push the outlet means and said cylinder into separable cooperation with said bushing. a v

6. In apparatus of the class described, a sump, a bushing in the sump, said bushing communicating with the exterior of the sump, a reciprocating plunger cooperating interiorly with the bushing and reciprocable from the outside of the sump, a pump cylinder separably fitted within said bushing, a plunger in said cylinder, a resilient means normally forcing said plunger into engagement with said reciprocable member within the bushing, inlet and outlet check valves associated with said cylinder and adapted to draw in and expel fluid under reciprocation of said plunger, outlet means associated with the cylinder, a spring meansadapted to force the outlet means and said cylinder into cooperation with said bushing, and registered means located between the cylinder and said bushing for predeterminately positioning said valves.

7. In apparatus of the class described, a sump, a bushing in the sump, said bushing communicating with the exterior of the sump, a reciprocating member cooperating interiorly with the bushing and reciprocable from the outside of the sump, a pump cylinder separably fitted within said bushing, a plunger in said cylinder, a resilient means normally forcing said plunger into engagement with said reciprocating member within the bushing, inlet and outlet check valves associated with said cylinder and adapted to draw in and expel fluid under reciprocation of said plunger, outlet means associated with the cylinder, spring means adapted to force the outlet means and said cylinder into cooperation with said bushing, registered means located between the cylinder and said bushing for predeterminately positioning said valve, an applicator and a pipe having a slip fit with said applicator and connected with said outlet means, the movement for eifecting said slip fit and application of the cylinder to the bushing being the same.

8. In apparatus of the classdescribed, a sump, a bushing in the sump, a pump cylinder separably fitted within said bushing, inlet end outlet valves associated with said cylinder and adapted to draw in and expel fluid under reciprocation of said pump plunger within the pump cylinder, outlet means associated with the cylinder, an applicator, and a pipe having a slip fit with said applicator and connected with said out let means, the movement for effecting said slip fit and application of the cylinder to the bushing being the same, and spring means holding said cylinder to the bushing and the pipe to the applicator.

9. In apparatus of the class described, a sump, a bushing in said sump, said bushing communicating with the exterior of the sump, a plunger assembly guided within said bushing and adapted to be reciprocated from the outside of said sump, a cylinder having a slip fit with said bushing and with which a portion of said plunger assemblycooperates, resilient means forcing said plunger as- 10 sembly outwardly, inlet and outlet valve means in said cylinder, whereby reciprocation of said plunger assembly effects pumping of fluid into and out of the cylinder, registry means between the cylinder and the bushing adapted'to prede- 15 terminately position the valve means, hollow outlet means screwed to the cylinder, means clamped between said hollow outlet means and the cylinder functioning as an outlet manifold, resilient means forcing the assembly of manifold, outlet 20 means and cylinder into cooperation with said bushing, an applicator, and a pipe connecting said outlet manifold with said applicator, said pipe and said applicator having a slip fit, the movement for eflecting said slip fit and applying as said cylinder to the bushing being parallel.

10. In apparatus of the class described, a sump, a bushing in said sump, said bushing communicating with the exterior of the sump, a plunger assembly guided within said bushing and adapt- 30 ed to be reciprocated from the outside of saidsump, a cylinder having a slip fit with said bushing and with which a portion of said plunger assembly cooperates, resilient means forcing said 7 plunger assembly outwardly, inlet and outlet 35 valve means in said cylinder, whereby reciprocation of said plunger assembly effects pumping of fiuid into and out of the cylinder, registry means between the cylinder and the bushing adapted to predeterminately position the valve means, 40 hollow outlet means screwed to the cylinder, means clamped between said hollow outlet means and the cylinder functioning as an outlet manifold, resilient means forcing the assembly of manifold, outlet means and cylinder into cooperation 46 with said bushing, an applicator, and a pipe connecting said outlet manifold with said applicator, said pipe and said applicator having a slip fit, the movement for eil'ecting said slip fit and applying said cylinder to the bushing being parallel and'a strainer adapted to be held clamped'between the outlet means and the bushing when said cylinder is applied to said bushing.

WILLIAM S. BOEHM. 

